JP2005255657A - Method for producing sterilizing and deodorizing sheet and container used therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for simply producing a chlorine dioxide-containing sheet that is convenient for sterilization and deodorization at home and in hospitals and has rapid effect without requiring large-scale facilities. <P>SOLUTION: Cloths or paper sheets 1 and 1 are impregnated with an aqueous solution of a chlorite, laminated to a synthetic resin bag B charged with an acid, put in a synthetic resin bag A, the end parts 2 and 2 of the bag are thermally fused, the bag A is pressed to break the bag B, the flowing out acid is reacted with the aqueous solution of the chlorite to form chlorine dioxide, which is impregnated into the cloths or the paper sheets 1 and 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for producing a sterilizing and deodorizing sheet impregnated with chlorine dioxide.

Chlorine dioxide gas is a strong oxidizer and is known to disinfect and sterilize by its oxidizing power, and to decompose malodorous components. Therefore, chlorine dioxide is used as a disinfectant and deodorant. ing. Since such chlorine dioxide dissolves about 20 times the volume of water to form a yellowish brown aqueous solution, it is desirable to use it in the form of an aqueous solution for handling. generate. Therefore, an aqueous solution that is dissolved in chlorine dioxide gas and an aqueous solution of sodium peroxide (Na ₂ C ₂ O ₆ ) and maintained at pH 9 containing sodium chlorite (NaClO ₂ ) as a main component, that is, a so-called stabilized aqueous solution of chlorine dioxide. Has been proposed to continuously generate chlorine dioxide gas while maintaining stability (Japanese Patent Laid-Open No. 61-181532).

  As a product using such a stabilized chlorine dioxide aqueous solution, a gelled chlorine dioxide generating composition comprising a stabilized chlorine dioxide aqueous solution and agar or gelatin has been proposed (Japanese Patent Laid-Open No. 57-22102). A gel-like chlorine dioxide generating composition comprising a chlorine aqueous solution and a superabsorbent resin has been proposed (Japanese Patent Laid-Open No. 61-181532).

  Recently, chlorine dioxide gas is dissolved in water, and a chlorite such as lithium chlorite and a pH adjusting agent such as citric acid or a surface active agent such as citric acid are blended in this aqueous solution. It has been disclosed that free chlorine dioxide having an action such as disinfection is contained at a high concentration, and this concentration is kept substantially constant for a long time (Japanese Patent Laid-Open No. 11-278808). In addition, a chlorine dioxide composition-containing sheet material in which a composition sheet material in which calcined aggregate is mixed with dissolved chlorine dioxide is applied or impregnated has been proposed (Japanese Patent Laid-Open No. 2003-55120).

  However, since the stabilized chlorine dioxide aqueous solution is maintained at an alkaline pH of 9 in order to maintain its stability, the generation of chlorine dioxide gas that exhibits actions such as sterilization and deodorization is extremely small, and a sufficient effect is achieved. It is difficult. Therefore, chlorine dioxide gas is generated by adding an acid to the stabilized chlorine dioxide aqueous solution just before its use to lower its pH to 7 or less. This requires a large amount of equipment, equipment, etc., which increases the cost. Therefore, even though it is suitable for sterilization and deodorization on a large scale, it is difficult to control the generation of chlorine dioxide gas and cannot be effectively applied to sterilize and deodorize easily at home or hospital. There is a point. In addition, gelation of a stabilized chlorine dioxide aqueous solution with a gelling agent to form a gel composition is not effective because the generation of chlorine dioxide gas is extremely small.

  The present invention is intended to solve such problems, and can contain dissolved chlorine dioxide at a high concentration, and in particular, bactericidal and deodorizing effects are fast-acting, The present invention provides a method for producing a chlorine dioxide-containing sheet which is extremely useful when used in the home or in the medical field, and a container used at the time of production.

  The present invention impregnates a bag (B) made of a soft synthetic resin, which is easily broken by pressure or impact, and an aqueous solution of chlorite, in a bag (A) made of a soft synthetic resin. The cloth or paper made to overlap is enclosed and sealed, and the bag (B) is broken by pressing or impacting the bag (A), and the acid enclosed in the bag flows out. This is a method for producing a sterilizing and deodorizing sheet characterized by reacting with an aqueous chlorate solution and impregnating the cloth or paper with the generated chlorine dioxide and taking it out from the bag (A).

  Further, the present invention is a container used for the manufacture of the above sheet, and a bag made of a soft synthetic resin which is easily broken by pressure or impact by enclosing an acid in a bag body (A) made of a soft synthetic resin. The container is characterized in that the body (B) and cloth or paper impregnated with a chlorite aqueous solution are overlapped and sealed.

  As the bag made of the soft synthetic resin used in the present invention, polyethylene, polyvinyl chloride, or the like is used. In addition, chlorite impregnated in cloth or paper includes alkali metal chlorites such as sodium chlorite, potassium chlorite and lithium chlorite, or calcium chlorite and magnesium chlorite. In addition, alkaline earth metal salts of chlorite such as barium chlorite can be mentioned, but commercially available sodium chlorite is easily available and there is no problem in use. As the sodium chlorite aqueous solution, 32% or 25% of commercial products can be used. As the bag (B), a thin soft synthetic resin may be used. However, since the contents are liquid, a material that is easily broken by pressing or impact at least one place may be used.

  As the chlorite activator as described above, the acid filled in the bag (B) is preferably an organic acid, such as citric acid, malic acid, acetic acid, succinic acid, lactic acid, fumaric acid and the like. Although it can be used, citric acid is particularly preferable.

  In addition, as cloth and paper impregnated with an aqueous solution of chlorite, a fiber cloth or non-woven fabric comprising thermoplastic synthetic fibers such as polypropylene fiber, polyester fiber, polyamide fiber, etc., or flexible that can be impregnated However, a nonwoven fabric excellent in moisture diffusibility is usually preferred.

  The sterilizing and deodorizing sheet impregnated with chlorine dioxide produced in the present invention is a cloth or paper, so it has a high flexibility and a wide surface area, so that chlorine dioxide is retained in the sheet. The generation efficiency is good and the rapid effect is excellent. In particular, sterilization and deodorization with chlorine dioxide can be performed quickly by taking advantage of its rapid effect in wiping after defecation when nursing infants and the elderly in homes and hospitals, and wiping when changing diapers. As such products, wet tissue impregnated with alcohol, quaternary ammonium (benzalkonium chloride), and those using amphoteric surfactants are commercially available, but their bactericidal power is weak, and bactericidal power and Considering odor, chlorine dioxide is advantageous as a countermeasure against infectious diseases. It is said that the disinfection power of chlorine dioxide is 2 to 3 times that of chlorine, and is effective against many bacteria that are currently socially problematic, such as Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Salmonella, Spore . Furthermore, hypochlorous acid, which is widely known as a disinfectant, reacts with organic substances to generate trihalomethane, dioxin and the like, whereas chlorine dioxide does not have this.

  Further, according to the present invention, there is an advantage that the chlorine dioxide impregnated sheet can be produced without requiring any special industrial equipment. The bag (B) filled with the acid in the bag (A) and the sheet impregnated with the chlorite aqueous solution may be overlapped and sealed by fusion or the like. The bag body (A) is pressed by human power at the place of use and at any time of use, and the bag body (B) can be easily broken to form a chlorine dioxide impregnated sheet. Further, the sealed bag (A) can be transported and transported as a set of containers, and any quantity of chlorine dioxide impregnated sheet as a product can be produced and used immediately before use.

  FIG. 1 is an explanatory view illustrating a method for producing a chlorine dioxide-containing sheet according to the method of the present invention, in which two upper and lower nonwoven fabrics 1 and 1 are sandwiched by a bag body B made of polyvinyl chloride or polyethylene. It is superimposed. These contents are inserted from both ends 2 and 2 of the bag body A made of polyvinyl chloride or polyethylene, and sealed by means such as heat fusion. FIG. 2 shows an end portion of the bag body B. When the bag body A is pressed from above and below, a structure such as a protrusion C is formed so that the acid of the contents flows out from this portion, and the structure is easily broken. Now, the non-woven fabrics 1 and 1 are impregnated with a predetermined amount of sodium chlorite aqueous solution, and a predetermined amount of citric acid is sealed in the bag body B, put in the bag body A and overlapped, and the end 2 of the bag body A .2 is heat-sealed to enclose bag B and non-woven fabric 1.1 to form one set. When this container is carried to the place of use and pressed up and down by hand, the bag body B is broken and acid flows out to react with sodium chlorite in the nonwoven fabric to produce chlorine dioxide and impregnate the nonwoven fabrics 1 and 1. The nonwoven fabric after impregnation is used as a sheet for sterilization and disinfection by opening the bag A.

  In another example of the method of the present invention, the bag B is filled with citric acid to form a columnar shape, and the nonwoven fabric 1 is wound around the surface in a roll shape to form a cylindrical nonwoven fabric. This is impregnated with a sodium chlorite aqueous solution by spraying, and the bag B formed in this way and the impregnated nonwoven fabric are enclosed in the bag A to form one set. Subsequent operations can be performed in the same manner as in the previous example to produce a sterilizing and deodorizing sheet.

  A nonwoven fabric having a size of 30 cm × 30 cm and a thickness of about 1.0 mm was folded in two to a size of 15 × 30 cm, and further folded to a size of about 15 cm × 15 cm. This nonwoven fabric was impregnated with 30 ml of a 0.5 wt% aqueous solution of sodium chlorite. Next, a polyethylene bag having a size of about 3 cm × 10 cm and a thickness of 0.1 mm was filled with 20 ml of a 2% by weight citric acid solution, and heat-sealing was carried out so that the citric acid solution was extruded when pressed with a palm. The nonwoven fabric impregnated with sodium chlorite prepared previously was bent to 15 cm × 7.5 cm, and obtained by sandwiching the above-mentioned polyethylene bag filled with citric acid between 7.5 cm. The stacked body was put into a polyethylene bag having a size of 9 cm × 20 cm, air was pushed out, heat fusion was performed to obtain a sample for experiment, and 20 samples were completed.

  Next, 10 samples were pressed with the palms of both hands to break the bag containing citric acid inside, and it was confirmed that the citric acid flowed out and was immersed in the nonwoven fabric. An impregnated nonwoven was obtained. Further, the same operation was performed for the remaining 10 pieces, the chlorine dioxide-impregnated non-woven fabric obtained from the polyethylene bag was taken out, the wall surface close to the soil of the kitchen with many viable bacteria was wiped off, and an experimental wipe sample was collected. For comparison, ten non-woven fabrics of the same size subjected to radiation sterilization were impregnated with 50 ml of pure water, and the wall surface was wiped off at the same place to collect test samples. Table 1 shows the results.

  A nonwoven fabric 15 cm × 30 cm that was folded in the same manner as in Example 1 was prepared. Next, a 3 cm × 10 cm polyethylene bag filled with 20 ml of a 0.3 wt% citric acid solution was prepared. Using the obtained citric acid-containing container having a diameter of about 2 cm as a core, the previously prepared non-woven fabric having a width of 15 cm and a length of 30 cm is wound in a roll to form a cylindrical shape having a diameter of about 3.5 cm and a length of about 15 cm A non-woven fabric was formed. This was impregnated with 0.075 wt% sodium chlorite solution from the top over 30 ml. The obtained material was filled into a 6.5 cm × 20 cm polyethylene bag, air was removed and heat fusion was performed, and five test samples were prepared. This was pressed with the palms of both hands to break the bag containing citric acid therein, citric acid flowed out and dipped in the nonwoven fabric and reacted with sodium chlorite to obtain a chlorine dioxide impregnated nonwoven fabric. This was applied to the right and left hands of five adults, and general bacteria were collected and used as test samples. Further, as in Example 1, a comparison was made using a pure water impregnation sheet. Table 2 shows the results.

It is explanatory drawing which illustrates the container which manufactures the disinfection and deodorizing sheet used for this invention method. It is explanatory drawing which expanded a part of bag B shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Nonwoven fabric 2 Thermal fusion part A of bag body A Bag body B Bag body C for acid encapsulation End of bag body B

Claims (3)

  In a bag (A) made of a soft synthetic resin, a bag (B) made of a soft synthetic resin that is easily broken by pressing or impact encapsulating an acid, and a cloth impregnated with a chlorite aqueous solution, or A sheet made of paper is placed on top of each other and sealed, and the bag (B) is broken by pressing or impacting the bag (A). A method for producing a sterilizing and deodorizing sheet, which comprises reacting with an aqueous chlorate solution and impregnating the generated chlorine dioxide with the cloth or paper and taking it out of the bag (A).   The method for producing a sterilizing and deodorizing sheet according to claim 1, wherein the cloth is a non-woven fabric.   In a bag (A) made of a soft synthetic resin, a bag (B) made of a soft synthetic resin that is easily broken by pressing or impact encapsulating an acid, and a cloth impregnated with a chlorite aqueous solution, or A container used for the manufacture of a sterilizing and deodorizing sheet characterized by overlapping and enclosing paper sheets.

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